codeigniter - Pagination and controller methods arguments -

here problem. i'm using pagination library of code igniter paginate results model return. thing i've need pass arguments controller method url this:

localhost/index.php/controller/paginationnum

and need this

localhost/index.php/controller/paginationnum/arg1/arg2/arg3

how can ignore paginationnumber in url can user arguments in controller?

i not entirely sure since using pagination combined ajax lot in codeigniter can't go with:

 $this->uri->segment(n);

so filter out unwanted parts of uri?

Naan